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use crate::component::datatype::DataType;
use uuid::Uuid;

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct Field {
    pub name: String,
    pub datatype: DataType,
    pub not_null: bool,
    pub default: Option<String>,
    pub check: Checker,
    pub encrypt: bool,
    uuid: String,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum Checker {
    None,
    Some(Operator, String),
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum Operator {
    LT, // <
    LE, // <=
    EQ, // =
    NE, // !=
    GT, // >
    GE, // >=
}

impl Field {
    pub fn new(name: &str, datatype: DataType) -> Field {
        Field {
            name: name.to_string(),
            datatype,
            not_null: false,
            default: None,
            check: Checker::None,
            encrypt: false,
            uuid: Uuid::new_v4().to_string(),
        }
    }

    #[allow(dead_code)]
    pub fn new_all(
        name: &str,
        datatype: DataType,
        not_null: bool,
        default: Option<String>,
        check: Checker,
        encrypt: bool,
    ) -> Field {
        Field {
            name: name.to_string(),
            datatype,
            not_null,
            default,
            check,
            encrypt,
            uuid: Uuid::new_v4().to_string(),
        }
    }
}